Carrier for conveyers



Oct..29, 1929. M. A. KENDALL 1,733,541

GARRIERFOR convmzns Filed April 16, 192e 2 sheets-sheet l 2 Patented Oct. "29, 1929 UN-irsn @STATES PATENT. orifice/E l ivrYnon A. KENDALL, or Annone, ILLINOIS, assiduo?. 'ro "srrErHENs-Anarison rire.rv

L 00,01i Annen-A, ILLINoIs, CORPORATION oiiiLLNoIs CARRIER non ooNvEYnRs Appncaeiony sied April 16,

l grade anti-friction bearings; to provide simple and inexpensive means to adjust taper roller bearings Lthat ,will be easilyV accessible after the installation has been made toreduce ythe bending moment on the shafts ofcarrier idlers and permit use of smaller and cheaper shafting and preserve correct alignment of the bearings; to produce better lubricating means that Will serveoil or grease with high efliciencyfto eitherTanti-friction or other bearings; and rto reduce the machine Work to simple and inexpensive operation.

Further objects and'advantages of ythermvention Willbe revealed as ythe description is the accompanying read in connection with drawings, in which f f f F ig. 1 is a side elevation of a carrier including three pulleys, or idlers, the conveyer bell; and the supporting girders being shown in section; f

Fig. 2 is alongitudinal sectionalview of a f fragment of the carrier enlarged;

Fig. 3 is an end elevation of the carrier with a fragmentof oneof the 'girders5 f y Figs. liand y5 are sectional views taken on thelinesl-r-fland 5-5 of Fig. 2, respectively;y ,f y

- f f i Each-- idler comprises yfa tubular i .hub 16 and Fig. 6 is a vertical'section through one of cured to the supporting girders 11, yidentical outer brackets y12, identical intermediate brackets 13, idlers .for pulleys 14, shafts 15 (F ig. 2) and anti-friction bearings 16.

The beam `lO'istapered transversely, as

illustrated -in Fig. 3, to incline the carrierk in .the direction jthat the load-carrying run of the belt travelsi It is secured to the girders by bent bolts 17 which pass through the ends of ,tliebeam and the flanges 18V of the f girders'and are equipped Withtapered Washers 19and-nuts 2O attheir loWerends. y

The outer brackets'include a foot 21'divided at QZ-'to accommodate the head 23 of rthe bolt 17. y At each side the foot 21 is slotted yhub through a duct 61.

/1926.\ Serial No. 102,410.

to receive a bolt 24 having its .head25in a f Q9 to accommodate the head 23 of the bolt 17 i Theplate is strengthened by a rib() forked at 31 to permit the bolt 17 to Lbe inserted after the brackets, and other parts, have beenk asx sembled toform the carrier. n J

yAbove the kforkll rthe bracket is yinclined inwardly, as shown in Figs. land 2`,and' terminates 1n a head 82 froinwvhich a down'- Wardly and inwardly kextended boss 83 pro- `iects. i This 'boss 1s circular in cross section and made hollow to receive oneend ofther i Each intermediate bracketits .headf37 in apocket 38 onftheloi'ver sidek ofthebeain 10 and equipped at-itsupper ,end With a nut 39.k y Above the foot it takes thewfforni of a plate 40 reenforcedr by ribs 41 and 112, andterminatingin a head 43 having c anupWardly and' outwardly inclinedfboss 114 and an inwardly projecting horizontal boss 145,'both of which are crcularin cross sectionr and made hollow toreceive the corresponding ends of shafts l5. f f

`Welded to disksfl? ,the peripheriesofWhich arereceived Within rimsl8 and held in place includes a `foot 34 slotted at toreceive a bolthaving of the antifriction bearings'are mounted on i ,i

the shafts 15 and have rtheirouter ends bear` ing against the corresponding bosses 33, 14 01'45. `f

i The shafts are provided with conical pockets 54 which cooperate With conical points 55 i on studs threaded into the bosses and locked by check nuts 57.' i y i f LEach head 32 containsa lubricantchaniber 58 Which is supplied through a nipple 59 hav` ing` a check yvalvefoOopening inwardly.r n, The chamber communicates with the bore of the I Each head 43 has a lubricant chamber 62 supplied through a nipple 63 having a check valve 64 also opening inwardly. The chambers 62 communicate with the bores of the vadjacent hubs through chiots 65 and 66.

The hubs of the idlers telescope with the bosses 33, le and 45, and the latter are provided with grooves 67 to form a dust seal.

The bearings may be adjusted by manipulating the bolts 2'? and 36 and the stud 56. For example consider the adjustment of the bearings of the left idler 14 and refer to Figs. 2 and 5. By loosening the bolts 27 and screwing down the stud 56 at theY yshould,'of course,-be set up and locked. A

similar operation will serve to adjust the Y bearings of the intermediate idler.

Either oil or grease is supplied to the lubricant chambers by attaching a pressure device to the nipples 55 and 63 and the lubricant reaches the bores of the yhubs through v the ducts 6l, 65 and 66. Heretofore it has been customary to supply lubricant through passages delivering through the shaft and communicating with the hub between `,the

bearinO's. This entailed an eX ensive machine operation on the shaft and required a supply of large quantities of lubricant in order to` insure, especially in the case of grease, that it would reach the bearings. rI`he present construction eliminates the boring of the shaft and supplies the lubricant to the comL paratively small chambers 68 directly at the bearings.

In Vthe case of the outer bearings of the outer idlers, the lubricant'in the chamber 32 tends Vnaturally to travel to the bearing,

whereas in lthe prior construction where the lubricant passes through the shaft to a point between the bearings, it tends to travelaway from the outer bearing. j

In the case of intermediate brackets, the relation between the chamber 62 and the duct 66 insures ample lubrication of the adjacent bearing on the left, in Fig. 2, and the corresponding bearing on the right, at the opposite side of the carrier. Y

rlhe lubricant will tend to work out through theends of the hub and to collect in the groove 67 and assist in preventing the increase of dust, water'and the like.

IWhere desired the ducts may be made to communicate directly with the grooves, as indicated in Fig. 6 where the chiots 70 and 71 intersect the bottoms of the grooves 72. This is particularly advantageous when grease is used for the pressure will force the grease to fill the grooves by the time the chamber 68 is filled.

The hubs 46 may be made of commercial tubing and the outer races 52 pressed to position against the shoulders 5l in specialmachines thereby insuringpermanent and exact alignment of the bearings. The location of the bearings close to the end supports ofthe shafts eliminates bending moment, reduces the strain on the shafts to shear, thereby permitting the use of low grade material of small section. The rims i8 of the idlers may also be made of commercial tubing and readily assembled to the' stamped disks el? at low cost.

rI`he outer brackets beingidentical in form, and the inner brackets also, the number of patterns and parts is reduced to a. minimum. The circumference of the bosses and the ducts may be made in a single operation with a box tool, eliminating expensive machining. The threaded apertures for the nipples and thev studs may be formed, by another tool on the same machine.

Where a larger number ofidlers is desired additonal brackets having bosses atappropriate angles can be readily made and the carrier extended to any width that may be required.

From the foregoing it will be seen that the invention results in a structure well adapted to accomplish the objects stated.

I'Vhile I have used specific illustration and description to make the disclosure clear it is not intended to thereby limitthe protection afforded by the patent further than is made necessary by the prior art.

I claim as my invention:

l. In a carrier for conveyers, the combination of a supporting structure, ar bracket mounted thereon, a second bracket adjustably mounted on the structure, opposed `hollow bosses on said brackets, a sha-ft supported in the hollow bosses, spaced anti-friction bean ings on the shaft, each including an outer race and an inner race, each of the latter bearing against one of the bosses, an idler including a hub mounted upon and fixed to the outer races,and means to adjust the shaft lengthwise with respect to one of said bosses rto ad-Y just the anti-friction bearings.

` 2. In a carriery for conveyers, a transverse support, spaced outer brackets on the support, each having a shaft receiving bore, spaced intermediate brackets between the outer brackets, each having a bore aligned with the bore in the corresponding outer bracket and a bore in alignment with the corresponding bore in the other intermediate bracket, shafts mounted adjacent to their ends in said bores, spaced antiefriction bearings on each shaft, and each including an outerk race and an inner race, the latter bearing against the corresponding bracket, an idler on each shaft including a hub liXedly mounted on the outer races, andmeans for adjusting the shafts lengthwise with respect to the brackets to adjust the yanti-friction bearings.

3. In a conveyer, the combination of spaced girders, a transverse bar on the girders, a bolt extending through each endof the bar and the correspondinggirder, abracket at each end of the bar straddling thebolt, and a pair of bolts for each bracket eXtending through the transversebar and the bracket on each side of the first mentioned bolt.

4. In a carrier for conveyers, a bracket including an upwardly inclined hollow boss, a lubricant chamber said boss having a duct eX- tending from the chamber through the boss and terminating below the top of the chamber.

5. In a carrier for conveyers, a pair of idlers, a shaft for each idler, antifriction bearings between the idlers and the shafts, a

ybracket including` opposed hollow bosses receiving adjacent ends rof the shafts, a lubricant chamber between the bosses, kand chiots, apart from the shaft, and extending outwardly from the chamber through the bosses to convey lubricant to the antifriction bearings,

6. In a carrier for conveyers, the combination of a plurality of brackets each having a laterally projecting cylindrical hollow boss opposed to the corresponding boss on the other bracket, a shaft having its ends mounted in the hollow boss, spaced anti-friction bearings on the shaft each including an outer and an inner rac-e, the latter bearing against the corresponding boss, "an idler fixed to thev outer races, said shaft having tapered openings adjacent to its ends and taper pointed screws mounted in the bracket and cooperating with said openings to adjust the shaft relative. to the brackets.

*7. In a carrier for conveyersa bracket, a hollow boss circular in cross section and having a groove in itsk circumference, a shaft in the hollow boss, an idler including a hub-rotatably mounted on kthe shaft and telescoping with the boss beyond the groove. y y

8. In a carrier for conveyers, a bracket, a hollow boss on the bracket circular in `cross section, a shaft in the hollowy boss, an antifriction bearing on the shaft, an idler including a hub mounted on the bearing, a lubricant chamber in the bracket, and a duct through the boss, apart from the shaft, andconnect'- ing the chamber with the interior of thehub between the end of the boss and the bearing. 9. In a carrier for conveyers, a bracket, a hollow boss onthe bracket circular in cross section, a shaftfin the hollow boss, an antifriction bearing on ythe shaft including an inner race resting against the boss and an outer race spaced from the boss, an idler including a hub mounted on the bearing and telescoping with the boss, a lubricant chamber in the bracket,'and Lduct through the fi boss apart 'from the shaft, and connecting'the f K4theboss and the bearing. l y

end'y mounted lin y'each boss, anfanti-fiiction bearing on` each shaft, an idler for leach shaft ''includin a hub mounted on the bearing and g e leading from the chamber through the bosses i into the hubs between the ends ofthe bosses `and the bearings. f Y

11. Ina carrier for 'conveyers, a bracket,

`rhaving a hollow boss therein circular in `cross section and provided with a circuinferen-l tial groove, a shaft having one end mounted in the boss, an idlerincluding a hub mounted n' on the'shaft and telescoping with the boss, a lubricant chamber in the bracket'and a duct connecting said chamber with the hub beyond the 'boss and with the circumferential groove.

12. In a carrier for conveyers, the combinationgof a pair of brackets each' havingy a smooth circular borein alignment with the bore in the other bracket, a shaft yinthe bores,

spaced anti-friction bearings 'on saidshaft each includingy an outer race and an inner race, the thrust ofthe latter abutting against thel corresponding bracket, an idler yfixed on the outer races, and means for adjusting one of the brackets relative to the shaft to adj ust the anti-friction bearings.

y10. carrier for conveyers, aabracket, a pluralityofhollow,bosses on the kbracket circular in' 'cross section, a shaft having one sor 13. Ina carrier for conveyers, the combinationiof a pair of brackets each having ay smooth'circular bore in alignment with thei bore in the other bracket, a shaft in the bores, spaced anti-friction bearings on said shaft each yincluding an'outer race and an inner race, the thrust ofthe latter abutting against the corresponding bracket, an idler fired on the outer races, and means fory adjusting one'r of the brackets relative to the shaft to adjust the 'anti-friction bearings'compr'ising a pointed screwL in the bracket cooperat inclined surface on the shaft.

14. Ina carrier for conveyers, thecombif nation of a pair of outer brackets each having a downwardly and inwardly directed smooth surfaced circular bore, a pair ofintermediate ing with an p iior brackets between the outer brackets each havi ing an upwardly and `outwardly directed'KVV smooth surfaced circular bore in alignment izo y with the borey inthe correspondingoutery bracket, and ahorizontaland inwardly ,di-`

rected smooth surfaced circular bore in alignment with the correspon ding bore in the other intermediate bracket, shafts fiXedly mounted in said bore, spaced anti-friction bearings on each shaft each including an 'outer race 'and an inner race, the thrustof the latter being against the corresponding bracket,y an

'4 i Imaam idler-*fixed on each set of outer races, and n means for adjusting one bracket relative to the corresponding shaft toy adjust the antifriction bearings. Y

l5. In a carrier for conveyers, the eornbnation of a pair of brackets each having a smooth circular bore in alignment with the bore in the other bracket, a shaft in the bores, spaced anti-friction bearings on said shaft each including an outer race and an inner f race, the thrust of the latter abutting against the corresponding bracket7 an idler fixed on the outer races7 and Wedge means for connecting one of theA brackets tothe shaft and adjusting that bracket relatively t the shaft to, adjust the anti-friction bearings.

In testimony whereof I -aix my signature.

MYRON A. KENDALL.

CID 

